:root{--bg:#F4F5F7;--ink:#0D0F14;--dim:#5F6672;--line:#E2E5EA;--card:#fff;--red:#FF3B30;--blue:#1D5BD8}
@media (prefers-color-scheme:dark){:root{--bg:#0D0F14;--ink:#F2F3F5;--dim:#9AA0AB;--line:#262A33;--card:#161920;--blue:#7AA2FF}}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 "Inter Tight",system-ui,-apple-system,"Segoe UI",sans-serif;-webkit-text-size-adjust:100%}
a{color:var(--blue)}
header,footer{max-width:820px;margin:0 auto;padding:20px 16px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
header nav,footer nav{display:flex;gap:18px;flex-wrap:wrap}
header a,footer a{text-decoration:none}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;color:var(--ink)}
.brand img{border-radius:50%}
main{max-width:820px;margin:0 auto;padding:0 16px}
article{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:clamp(20px,5vw,44px);margin:12px 0 28px}
h1{font-size:clamp(28px,6vw,40px);line-height:1.15;margin:0 0 6px;letter-spacing:-.02em}
h2{font-size:21px;margin:32px 0 8px;letter-spacing:-.01em}
.meta{color:var(--dim);margin:0 0 20px}
ul{padding-left:22px}
li{margin:6px 0}
footer{color:var(--dim);font-size:15px;border-top:1px solid var(--line);margin-top:8px;padding-bottom:40px}